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From "Dave Marion (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-4576) HostRegexTableLoadBalancer assigns/balances with stale information
Date Wed, 25 Jan 2017 21:46:26 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-4576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dave Marion resolved ACCUMULO-4576.
-----------------------------------
    Resolution: Fixed

> HostRegexTableLoadBalancer assigns/balances with stale information
> ------------------------------------------------------------------
>
>                 Key: ACCUMULO-4576
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4576
>             Project: Accumulo
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 1.7.2, 1.8.0
>            Reporter: Dave Marion
>            Assignee: Dave Marion
>             Fix For: 1.7.3, 1.8.1, 2.0.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> The balancer maintains an internal mapping of tablet server pools and tablet server status.
It's updated at a configurable interval, which was done initially as an optimization. Unfortunately
it has the negative side effect of providing the assignment and balance operations with stale
information about the tablet servers which leads to a constant shuffling of tablets. The configuration
property and optimization needs to be removed to supply the assign/balance methods with the
correct information every time.



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